45
Examples:
The proportional ramp settings of the VAV mode will depend on the used sensor:
a)
S&P AIRSENS CO2
have already been programmed to control a ventilation system. In case an AIRSENS CO2 is ins-
talled within the SLIM unit, the recommended configuration would be as follows (example for SLIM 1200; nominal
airflow = 1200 m
3
/h):
b) Standard CO2 sensors have a measure range of 0-2000 ppm and a 0-10V output.
Given the fact that our interest is to keep the CO2 concentration below 1200 ppm (good Indoor Air Quality), we need
to set the fans at hight speed when the CO2 sensor supplies 6V. (6V = 1200 ppm).
In such a case, the recommended configuration would be (example for SLIM 1200; nominal airflow 1200 m
3
/h):
The selection of the VAV mode automatically configures the FAN MENU screen, adapting it to the VAV mode:
Stop: the unit stop.
Manual: Manually selection of airflow setpoint by percentage. If “Manual” is selected, unit won’t follow the 0-10V input.
Auto: Automatic control according to 0-10V input and the time programming (if configured).
19.1.3. Constant pressure operation (COP)
Recommended mode in multi-room installations, in which regulation of airflow is done through dampers in each
zone/room.
Airflows automatically modulated to maintain a constant pressure value measured by a pressure transmitter installed
in the duct.
By default the controller is confi gured to use external pressure transmitter SPRD 0 10 B, with pressure range 0-800Pa
and output 0,5-4,5V.
In case of using a different pressure transmitter, as TDP-S, it would be necessary to modify the "COP Pressure transmi-
tter" initial settings according to the pressure transmitter characteristics:
Summary of Contents for SLIM Series
Page 1: ...SLIM EN...
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